Note: I assume “download busy 21 rel 7.2” refers to BusyBox version 1.21.0 packaged in a release labeled “7.2” (commonly distributions or vendors apply their own rel numbers). If you meant a different package, replace the version numbers below accordingly.
The best practice is to contact the original publisher (if they still exist) or search for a legal open-source replacement. download busy 21 rel 7.2
Download Busy 21 Rel 7.2: A Comprehensive Guide BusyBox 1
If you are currently using BUSY 18, BUSY 20, or an earlier release of BUSY 21, here are compelling reasons to download BUSY 21 Rel 7.2: Why You Should Upgrade to BUSY 21 Rel 7
Run Setup: Double-click the Setup.exe file in the extracted folder.
export CROSS_COMPILE=arm-linux-gnueabi-
export ARCH=arm
make menuconfig # choose appropriate options
make -j4
BusyBox 1.21.0 is an older release and may contain unpatched security issues. For production or internet-exposed systems, prefer recent BusyBox releases, or ensure you’ve applied security patches.